Frederick heidrick



F. HEIDRICK.

Vapor Burner.

No. 31,887. I Patented April 2,1861.

QM M i N. mns; Pmu'qm npner. Washington. a c.

UNITED STATES FREDERICK HEIDRICK, OF PHILADELPHIA, PENNSYLVANIA.

LAMP.

Specification of Letters Patent No. 31,887, dated April 2, 1861.

To all whom it may concern:

Be it known that I, FREDERICK HEIDRICK, of Philadelphia, in the State ofPennsylvania, have invented certain new and useful Improvements in Fluid-Lamps; and I do hereby declare that the following is a full, clear,and exact description of the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,in which Figure (1) is a perspective view of lamp. Fig. (2) is asectional view of the top or cap, exhibiting my improvement and Fig. (3)is a plan of the tube-showing also the chamber around the wick pinion.

The nature of my invention consists in providing the wick tube with achamber around the wick pinion, which shall be fluid tight for thepurpose of preventing the escape of the fluid, and thus avoid the greatliability to explosion.

In lamps of the ordinary mode of construction it is well known that thewick pinion is placed on the outside of the wick tube. As these pinionsdo not entirely stop up the orifices for their reception, the fluid asit ascends to the mouth of the tube leaks out gradually, until from theheat of the wick tube it suddenly ignites and conveys the flame to thefluid in the lamp, which of course at once explodes the vessel,frequently with loss of life. WVithout enlarging upon the manydisadvantages and dangers attending lamps thus constructed I shallproceed to describe my improvement for the purpose of enabling thoseskilled in the art to make and use it.

- (A) represents the lamp, (R) the cap or I top, which is screwed uponthe lamp (A). Said cap is provided with deflectors (E) as fully shown inFig.

(S) is a wick tube, which should extend through the center of cap (f arepinions, operated by means of shaft (C). The object of these pinions isto regulate the wick. They should therefore enter the wick tube by meansof orifices prepared for their reception.

(D) represents a box or chamber, which is soldered to the wick tube overthe pinions (f f). The shaft (C) should be ground and made to fit fluidtight at its journals. Thus the pinions (f f) and their orifices will becompletely incased, thereby preventing any escape of the fluid on theoutside of the wick tube, which of course will obviate the proximatecause of explosion.

I render the cap a nonconductor by the employment of two shells orcases, which are joined together, with a space between the two, whichspace is filled with plaster of paris. This however I do not claim as myinvention, but 7 i That I do claim and desire to secure by LettersPatent is The employment of a fluid tight chamber, over the wick pinionin combination with the wick tube, substantially in the manner and forthe purpose described.

In testimony whereof I hereunto set my hand and seal this the 14th dayof January, A. D. 1860.

FREDK. HEIDRICK.

Witnesses:

GEORGE THOMAS, WVILLIAM S. OGLE.

